Heel finishing machine



Jan. 16, 1934. H. B. GREENOUGH 1,943,303

fiEEL FINISHING MACHINE Filed March 21, 1931 '7 Sheets-Sheet 1 Jan. 16, 1934. H. B. GREENOUGH 1,943,303

HEEL FINISHING MACHINE Filed March 21. 1931 7 Sheets-Sheet 2 Jan. 16, 1934. H. B. GREENOUGH HEEL FINISH-1N6 MACHINE 7 Sheets-Sheet 3 Filed March 21, 1931 A/I/E/VTUF Jan. 16, 1934. H. B. GREENOUGH HEEL FINISHING MACHINE Filed March 21, 1931 7 Sheets-Sheet 4 99% WQW J 1934. B GREENOUG l- 1,943,308

HEEL FINISHING MACHINE Filed March 21. 1931 TSheets-Sheet 5 I Z04. 725ml n31.

1 WN H. is

Jan. 16, 1934. H. a GREENOUGH HEEL FINISHING MACHINE 7 She ets-Sheet 6 Filed Marbh 21. 19:51

/VVE/VTUA? I W W,

Jan. 16, 1934. H. B. GREENOUGH 1,943,308

' HEEL FINISHING MACHINE Filed Marqh 21, 1931 7 Sheets-Sheet '7 Fig.8. 4'12 Patented Jan. 16, 1934 UNITED STATES PATENT OFFICE United Shoe Mac cry Corporation, Paterson,

N. .L, a corporatio of New Jersey Application March 1, 1931. Serial No. 524,271

r 46 Clai This-invention relates to machines for use in the manufacture of boots and shoes and is herein illustrated as embodied in a multi-station machine for performing finishing operations on heels, this machine being of the type disclosed in' Letters Patent of the United States No. 1,630,565, granted May 31, 1927, and No. 1,7 3,203, granted January 14, 1930, on the applications of A. B. Fowler.

A general object of the invention is to provide an improved machine of this class which will be simpler in construction, less subject to wear, and

stronger, than similar prior machines.

Machines of this type .embo'dy a work carrier or a turret uponwhich a plurality of jacks are provided to present pieces of work to a series of operating tools. The machines have usually been arranged to burnish, bead and brusha heel and have had four jacks on the turret, one of these being at the jacking station to permit the removal of a finished piece of work and the application to the jack of another work piece during the interval while those on the other jacks are being treated by the successive tools.

The wax which is applied for heel burnishing is usually Carnauba wax which, when melted, becomes fiuid but which quickly reverts to a solid condition upon a comparatively small decrease of temperature. Accordingly, it becomes particularly desirable to eifect a uniform application of wax around the periphery of the heel so as thereby to lessen the work required of the padding and brushing tools. It is also desirable to prevent the application of any wax to the upper of a shoe, to which the heel to be treated is attached-such as wouldbe apt to result in the case of the supply of an unduly large quantity of wax to the applying tool. The application of wax is facilitated in the illustrated machine by providing an extra tool and an extra jack so that wax is applied at the first station and the heel is padded or burnished at the second station. The proper application of wax is still further facilitated, in accordance with a feature of the invention, by utilizing a heel finishing tool which is mounted for free rotation, relative movement being effected mechanically between a heel and the tool to cause the tool to rollaround the periphery of the heel. This tool, in the illustratedmachine, has an absorbent peripheral portion made up of an annular ring of fibrous material such as felt. As shown, also, and in accordance with other features of the invention, liquid wax is supplied to the fibrous ring at a point away from the active periphery of the tool and is allowed to soak ply heat to both the pot and the tool.

through the ring for delivery to the work. The wax applying tool is not required to perform any burnishing operation and if the proper quantity of wax is supplied there will be no danger of soiling the upper of the shoe. An even coating of wax will result from the rolling contact between the shoe and the tool.

To make such an arrangement as that just described most effective, it is necessary to keep the tool heated to a uniform temperature and to limit the supply of liquid wax to an amount required by the work done. Accordingly, in the illustrated machine a heating unit is provided between the wax applying tool and a wax pot, thereby to ap- The tool, itself, is guarded from cooling drafts by means of a flange partly surrounding the tool. In accordance with still other features of the invention, a guard is provided for the exposed portion of the tool which is movably mounted so that it can be moved aside to allow the work and tool to be brought into contact with one another. Preferably, and as illustrated, means are provided for automatically removing this guard upon the presentation of work to the tool. of wax from the wax pot to the tool is controlled by means of a valve which, in the illustrated construction, is made responsive to the presentation of work to the tool so as thereby to limit the flow of wax to such times as the tool is in 35 active use in applying wax to a heel.

In connection with the beading of the heel, it is customary to burnish the surface of the upperprojecting portion of the heel, which may be the top surface of a rand or the upper edge of a sole, and which portion adjacent to the forward corners of the heel will merge into the upper surface of the ends of the welt. Commonly this burnishing operation is performed simultaneously with the beadingby means of a burnishing disk which enters the rand crease, serving at the same time both to guide the tool in its movement with respect to the heel and also to determine the location of the bead line on the periphery of the heel.

In the case of an automatic machine of the type which is under consideration, it is practically impossible to jack a large number of shoes in such a way that the rand crease will lie always in exactly the same plane with respect to the heading tool. Accordingly, and in order to insure firm contact of the burnishing tool with the top of the rand, it has been suggested that the tool be allowed to float into the crease and that pressure be applied to the burnishing tool to hold it in firm contact with the top of the rand. Still another The flow so i feature of the invention comprises simplified means for guiding the combined burnishing tool and beading wheel into engagement with the work and insuring a firm contact with the work. To

this end the illustrated tool floats on its drive shaft and is brought against the heel under an oblique pressure acting to facilitate proper loca-' tion of the tool in the crease and to hold the crease-entering member in firm engagement with the top of the rand. As illustrated, a holder is provided for both the crease-entering tool and the heading tool, and means are provided for resiliently supporting the beading tool in said holder thereby to accommodate any irregularities in the surface of the periphery of the heel which may result from imperfect scouring orthe like. Furthermore, in order to adapt the machine for use in heels the side faces of which have different inclinations in accordance with the different styles of the shoes, means are provided permitting adjustment of the angular relation of the axis of the feed wheel with respect to the axis of the crease? entering tool.

In machines of the type under consideration. the shoe-supporting jacks are mounted-around the periphery of a rotatable turret and the 'variousoperating tools are arranged outside the circle of the tools, the tools-being moved in and out to bring them into engagement with the shoes at their respective stations. This in-and-out movement has been provided, heretofore, by mounting the tools on slides movable radially with respect to the turret and the tools have been rotated through shafts provided with universal joints. Another feature of the invention resides in -mounting the tools adjacent to the upper ends of arms which are pivoted near the bottom of the machine and in mounting the driving means, such as an electric motor, on these arms for movement therewith. By this arrangement friction is eliminated, dimcultles of lubrication are simplified, and the use of universal joints is avoided. The length of the arms in the illustrated machine is such that the path of movement of the tools to accommodate heels of varying sizesiis practically a straight line movement.

The work is clamped in position, in machines of this type, between an abutment and a relatively movable support which is mounted on a jack spindle and the operation of jacking the work is effected by means of operator-controlled mechanism applying pressure to the jack spindle. In order to permit movement of the carrier, the connection between the pressure-applying mechanism and the spindle must be a broken connection and in some machines provision has been made 'for preventing operation of the jacking mechanism unless a jack spindle is in position in alinement with the jacking mechanism. This was done in order to avoid damage to the jacking mechanism by contact with a jack spindle of a succeeding work support in case the operator inadvertently operated that mechanism while the turret was moving forward to bring the next jack into position. In the illustrated machine, the arrangement has been simplified by omitting the latch preventing accidental operation-of the jacking mechanism, and a power-operated jack lifter is provided with a portion arranged normally to contact with the bottom of the jack spindle to effeet a jacking operation, and laterally displaceable by an oncoming jack spindle if it has been prematurely elevated into the path of said oncoming spindle.

In the drawings.

Fig. 1 is a front elevation of a-machine embodying the invention with the guards for covering the operating mechanism removed and with parts-of the frame broken away more plainly to show the operating mechanism;

- Fig. 2 is a plan view of the machine as illustrated in Fig. 1 but with the guards in place;

Fig. 3 is a side elevation of a part of the machine shown in Fig. 1 with parts of the side of the frame broken away;

Fig. 4 is a plan view with parts in section, the section being takenalong a plane between the main frame and the jack carrier;

Fig. 5 is a side elevation of the wax applying mechanism;

Fig. 6 is a central sectional elevation through the wax applying tool and the wax tank from which wax is supplied to the tool as shown im Fig. 5;

Fig. '7 is an elevational view illustrating the padding wheel with a shoe in operative relation thereto;

Fig. 8 is a side elevation of a heel beading and rand burnishing mechanism;

Fig. 9 is an enlarged view of the operating tools of the mechanism illustrated in Fig. 8; and

Fig. 10 is a plan view of the tools illustrated in Fig; 9.

The present invention contemplates the use of a rotating turret carrying a plurality of jacks hereinafer termed a jack carrier, which is arranged to present several pieces of work successively in various positions where they are operated on simultaneously but by separate tools. The tools are mounted at positions equally spaced in a circle hereinafter referred to as stations for treatment of the pieces of work and such tools as are normally driven in operating on the work are continuously rotated while the machine is in operation and are arranged to be presented to and withdrawn from the work at the proper times when the several pieces of work are at posi- .tions corresponding to the several tool stations. In the particular machine herein illustrated, the work pieces are supported by a plurality of jacks which are intermittently rotated bodily about a common axis, to present the work pieces successively to the various tools, and are alsorotated about their own axes to facilitate the presentation of certain parts of the work pieces to the tools. In the normal operation of the machine each bodily movementcf the jacks results in the bringing of a finished work piece into position at the front of the machine at the jacking station to be replaced by an untreated work piece. The machine in which the present invention is illustrated as embodied is intended for use in finishingthe peripheral faces of heels; and the tools employed in the finishing operation comprise a wax applying tool with a wax supplying mechanism therefor, a padding tool, a tool for beading the heel adjacent to the rand crease and simultaneously burnishing the face of the rand adjacent to the upper, and a polishing brush for completing the finishing operation adapted for engagement with the entire face of the work to be finished heightwise thereof.

In general, the illustrated machine comprises a base 14 (Fig. 3) aving a step bearing-16 rotatably supporting and taking the axial thrust of a shaft 18 on which is fixed at its upper end a jack carrier 20 .having five arms and comprising a spider 22 (Fig. 1) extending above the top of the shaft 18. The spider 22 in the illustrated machine is also provided with five arms each of which carries a yielding work abutment 24 which cooperates with a work support 26 supported indirectly by the jack carrier 20 in each arm thereof to hold a heel, whether attached to a shoe or not, while being operated upon. A wax applying tool 28, 2. padding tool 30, a burnishing and beading tool 32, and a polishing tool 34 are mounted respectively on tool carriers 36, 38, and 42 all of which are pivotally mounted respectively at their lower ends on pins 44 which are fixed in the ends of inwardly extending extensions 46 of the frame 14.

The work jacks, one of which is to be explained below, occur in the present machine as five identical mechanisms which are more fully illustrated and described in the above-mentioned Patent No. 1,630,565. As herein illustrated, each jack device comprises, in addition to the work abutment 24 and the support 26, a jack spindle 48 (Figs. 1 and 3) which is mounted to slide vertically in a bearing 50 in the carrier 20 and which may be held in its elevated positiomwherein a work piece is clamped between the worksupport 26 and the abutment 24, by means of an eccentric dog 52 adapted for engagement with the lower flattened end of the jack spindle 48 and normally held in engagement therewith by means of a spring 54, the tension of which is imparted to the dog 52 by a rod 56.

A shoe having been placed on the work support 26 nearest to the observer in Fig. 1, with pins 58 extending from the upper surface of the work support 26 in registry with corresponding holes in the heel of the shoe for purposes of alinement of the shoe with the work support, the jack spindle 48 is lifted by a novel operating mechanism presently to be described whichfirst causes the work support 26 to assume an erect position; and then to carry the tread face of the heel of the shoe into engagement with the lower end of the work abutment 24; and last, to cause the work abutment 24 to yield sufliciently to insure its holding the shoe against the work support with ample pressure properly to support the shoe against the pressure of the operating'tools. The mechanism for effecting the above operation of the work jacks comprises a jack lifter 60 (Fig. 3) aflixed to the lower end of a guide rod 62 mounied for vertical reciprocation in a bracket 64 attached to the front upper portion of the frame 14. The jack lifter 60 pivotally supports at its upper end links 66 (Figs. 3 and 4) to each of which links is pivoted a bar 68 which maintains the links 66 in parallel relation and normally is disposed directly beneath the path of the jack spindles 48. The links 66 and the bar' 68 are held in their normal posi'ions illustrated in Fig. 4 by means of a spring 70 which tends to turn the links in a counterclockwise direction to hold the left-hand link 66 against a stop 72 (Fig. 4) extending upwardly from the lifter 60. The advantage of the particular form of jack lifter above described will be explained later.

The jack lifter 60 is operated by a crank 74 connected to the lifter by means of an adjustable connecting rod 76 and is actuated by the depression of a treadle 78. The treadle controls a clutch mechanism presently to be described, the driven part of which is connected to the crank shaft 74 and the driving part 80 of which is constantly rotated. The clutch element 80 is driven from the main driving shaft 82 (Fig. 3) rotatably supported in a suitable bearing at the rear portion of the frame 14, through a worm gear 84 the frame and which is connected to the shaft 82 by a chain 98 running over a sprocket 100 on the drive shaft 82. A hand-wheel 102 is fixed to the outer end of the shaft 82 in order to facilitate the turning over of the machine without the use of power. The mechanism for efiecting the engagement of the crank shaft 74 with the clutch element 80 to cause a forward movement of the jack lifter will now be described.

A downward movement of the treadle 78, which is rotatably mounted on a stub shaft 104, is transmitted to an adjustable connecting rod 106, which imparts a clockwise rotation to a crank 108 which both allows the crank shaft 74 to be connected to the clutch part 80, and disconnects them at the end of one revolution and stops the crank shaft 74 in its original position. To this end, the upper end of the connecting rod 106, the lowerend of which is pivoted at 110 on the treadle 78, comprises a hook 112 which is arranged to engage a pin 114 extending from the side of one arm 116 of the crank 108. A spring 118 connecting the crank 108 with the connecting rod 106 is arranged yieldingly to hold the shank of the hook 112 against the pin 114. Downward movement of the treadle 78 is therefore transmilted to the crank 108 through the pin 114, causing rotation of the crank 108 suflicient to remove the end of another arm 120 of the crank 108 from engagement with a lug 122 associated with the clutch part a'.tached to the crank shaft 74. As soon as this occurs, however, the clutch itself operates to establish a driving connection between the crank shaft 74 and the constantly rotating clutch element 80, as a result of which the crank is rotated and the jack lifter is raised by an amount equal to twice the throw of the crank- 74. Rotation of the crank 108 adequate to perform the above operation also causes another of its arms 124 to engage the upper end of the hook 112 and todisconnec; it from the pin 114, allowing the spring 118 quickly to rotate the crank 108 back to its normal position such as that illustrated in Fig. 3, where it will engage the lug 122 at the end of its first revolution, thereby disengaging the crank shaft 74 from the constantly rotating clutch element 80 and stopping the crank shaft 74 in its original position.'

The inernal details of the clutch mechanism are not fully disclosed herein since they are completely illustrated and described in the Letters Patent No. 1,743,203 referredto above. A coiled spring 126 connecting the upper portion of the frame 14 and the treadle 78 holds the treadle in its normal upper position, which is controlled and may be adusted by means of a screw 128 in the inner end of the treadle and the head of which is arranged to engage the base of the frame 14. A pump 130 for supplying oil under pressure to the various bearings of the machine is driven by a chain 132 which runs over the sprocket 94.

The location at which the lifting of the jacking the jacking operation and before the carrier 20 is rotated to carry the newly jacked shoe to the wax applying station the jack spindle 48 will have been elevated to the position which the jack spindles are illustrated in Fig. 1 as occupying at any station except the jacking station.

A reversal of the movement of the treadle necessary to effect the jacking of the shoe, as above described, results in the actuation of mechanism for causing a rotation of the shaft 18 and hence the jack carrier 20 (in a counter-clockwise direction when viewing Fig. 2) which effects abodily movement of the work jacks above referred to in order to carry a newly jacked heel from the jack ing station into operative relation to the wax applying tool. It is understood also that sue -a movement of the carrier also causes the adv cc of each of the other work jacks to the succe ding stations. This rotation of the carrier is continued until the outer heel corner is opposite the proximal point of the wax applying tool 28, be-' tween which and the heel at this time there is a certain amount of clearance. The subsequent operations of the machine in chronological order, which occur in the complete treatment of a heel at any station, so far as presentation of the tool to'the surface of the heel to be treated is concerned, are as follows: The tool carriers are swung inwardly by mechanism to be described later to carry the work engaging faces of the tools into contact with the work at the corner of the heel. The carrier 20 is then. given a rotation reverse to that which resulted in the transfer of the work jacks from one station to the next until the points of operation of the tools on the heels are trans-' ferred from their corners to points at the sides of the heels where their relatively sharper and constant curvature begins. The carrier 20 is stopped at this stage of its movement and the work jacks are then rotated about their own axes through substantially a half revolution in order that the practically semicircular rear portion of the heel surface shall be presented to the tools. During the above rotation of the work jacks about their own axes, the'breasts of the heels are swung inwardly toward the shaft 18 in passing from one extreme position to the opposite extreme position. At the completion of this rotation of the work jacks they are again bodily rotated, as a result of movement of the carrier 20, in a clockwisedirection (Fig. 2) about the axis of the shaft,18, to present the remaining side faces of the heels to theaction of .the tools. And in passing between all stations of the machine except the jacking and wax applying stations, the heels are given a reverse rotation so that at the beginning of any operation the breasts face in the direction of the clockwise movement of the carrier. The mechanism for effecting the above-mentioned rotation of the shaft 18 and the carrier 20 for the work jacks will now be explained in detail.

The phases of operation of the carrier which for each cycle of its movement comprise a period of counterclockwise movement (Fig. 2), a period of clockwise movement, a period of rest, and a final period of clockwise movement, are-derived from a transverse quill shaft 134 (Fig. 1) which rotates at a constant angular velocity through one revolution to complete a cycle of the movement of the jack carrier as above described, resulting in one transfer of the work jacks between successive stations and their movement at the station which is necessary to cause a transfer of the point of operation of the tool along the side portions of the heel. The quill shaft 134 carries at masses one end a gear 136 and is arranged to rotate and slide on a shaft 138 rotatably mounted in suitable bearings in the lower portions of the sides of the frame 14. The gear 136 is in meshing engagement with a gear 140 rotatably mounted on the shaft 88 and having integral therewith the driven element 142 (Fig. 3) of a clutch of which the driving element is constituted by the gear and sprocket 84, 92. The mechanism by means of which these clutch elements are engaged and disengaged is the same, but on a larger scale, as that in the clutch forming a part of the jacking mechanism and is more fully described in the prior patents referred to above.

The engagement of the clutch, which causes movement of the gear 140, .is effected by upward movement of the treadle 78 through a rod 144 connecting the treadle with a bell crank 146 pivoted at 148 on a depending extension of a bracket 150 fixed to the rear portion of the frame. Movement of the bell crank 146 corresponding to downward movement of the treadle '78 causes a finger 151, pivoted on the crank 146, to rise and a shoulder 152 thereon to be engaged with a pin 153 in a lever 154 the hooked end 155 of which normally engages a lug 158 associated with the clutch element 142. The finger 152 is yieldingly held in engagement with the pin 153 by a spring 159 connecting the finger and the bracket 150. When the treadle is released, its upward movement causes the bell crank .146 to be rotated in a counterclockwise direction (Fig. 3) and, through the finger 151, withdraws the end 155 of the lever 154 from the lug 158, thereby to allow the internal mechanism of the clutch to establish a driving engagement between the clutch element 142 and the element comprising the gear 84 and the sprocket 92. The beginning of a full revolution of the gear 136 and hence the quill shaft 134 is thus effected. In the illustrated machine the diameter of the gear 140 is one half that of the gear 186 and hence, in order that the gear 136 shall be stopped at the end of one complete revolution, the gear 140 must be allowed to rotate through two revolutions and then must be stopped. The mechanism for insuring this operation of the machine will now be described. A gear 160, of the same diameter as that of the gear 136, fixed to the shaft 138 carries on the outer side of its web a cam 162 which,

after rotating through a relatively short arc,.

engages the end of an arm 164 which is pinned, together with the lever 154, to a shaft 166 rotatably mounted in the bracket 150. The cam 162 thus through the connections above described holds the hook beyond the path of the lug 158 as it passes in proximity to the hook 155 at the end of its first revolution after being started. But toward the end of the first revolution of the gear 160, a button 161 on the driven element 142 of the clutch trips the finger 151 and the cam 162 subsequently allows the lever 164, and hence the-lever 154 carrying the hook 155, to swing inwardly toward the clutch element 142, whereupon the hook 155 occupies a position within the path of the lug 158. When the lug 158 comes again into enga- .ment with the hook 155 the clutch part 142 is disengaged from its driving element and is stopped in its original position.

The arms 164 and 154 are normally urged in a The transmission of power from the quill shaft 134 to the shaft 18 is effected through a worm 170 out in the quill shaft and which meshes with a worm gear 172 fixed to the lower end of the shaft 18. The above-explained movements of the carrier which constitute one cycle of its operation, and hence the worm gear 172, which are inopposite'directions and which are interrupted by a, period of rest, are effected notwithstanding the constant angular velocity of the worm 170 by moving it axially in a predetermined manner. The axial movement of the quill shaft 134 is caused by a cam 174 effectually integral with the quill shaft 134 having a cam track 176 out in its peripheral face within which is engaged a fixed cam roll mounted on a stud 1'78 fixed in the end of a bracket 180 attached to the left side of the lower portion of the frame 14, as seen in Fig. 1. The cam track 176 is so shaped that as the quill shaft 134 and the cam are turned during the first rotative movement of the carrier which effects one transfer of the work jacks between successive stations, there results no axial movement of the quill shaft; and the movement of the carrier in this stage of its operation is a direct function of the lead of the worm 170. During the period when the first clockwise rotation of the carrier occurs the leadof the corresponding portion of the cam track is greater than that of the worm 1'70 and in the opposite direction, whereby the shaft 134 is translated in a direction opposite to that of the progress of its lead and a rotation is imparted to the worm gear 172 reverse to the normal direction of its rotation if the quill shaft 134 were to be merely rotated and not translated axially. During the period of rest of the carrier when there is no bodily movement of the work jacks about the axis of the shaft 18, the lead of the cam track 1'76 is equal in degree but is opposite in direction to that of the worm 1'70, as a result of which the worm is translated as far in one direction as its lead normally progresses in the other in the same unit of time; and the jack carrier is held stationary notwithstanding the constant rotation of the worm 170; During the last phase of the clockwise rotation of the carrier to complete the transfer of the point of operation of the tool on the work thereabout, the worm 170 is again translated in a direction opposite to its lead faster than the-worm gear 172 would normally be rotated on account of the lead of the worm.

During the periods when the tools are operating on the side portions of the heels, the work jacks remain stationary with respect to the carrier 20, but between these periods the carrier is held stationary and the work jacks are rotated with respect to the carrier in order to present the more sharply and evenly curved rear portions of the heels to the tools. As above stated, the work jacks are also again rotated with respect to the carrier, as the carrier is rotated to transfer the work jacks between stations, in order that the heels shall be presented to the tools at all stations in the same manner as at the first. To effect the above-mentioned relative rotation between the work jacks and the jack carriers, the illustrated machine is provided with a mechanism operating in accordance with a principle similar to that of the mechanism previously described for rotating the jack carrier itself.

The mechanism for effecting relative rotation between the work jacks and the carrier 20 comprises a quill shaft 182 (Fig. 1) mounted to rotate and to slide on a shaft 184 journaled in suitable bearings in the sides of the frame 14. The quill shaft 182 derives its rotation from thegear 140 which meshes with another gear 186 the diameter of which is twice that of the gear 140 and which is fixed to the quill shaft 182. A worm 188 out on the quillshaft 182 meshes with a worm gear 190 (Fig. 3) fixed on the lower end of a sleeve 192 to the upper end of which is attached a segmental gear 194, the sleeve 192 being arranged to form a bearing for the shaft 18 and being itself supported in a bearing 196 in the top of the frame 14. The weight of the sleeve 192 and the gears attached thereto are carried by a thrust bearing 198 the lower element of which is pinned to the shaft 18, as illustrated in Fig. 3. On each arm of the jack carrier 20 corresponding to an operating station is mounted a clutch and gear mechanism connected with the segmental gear 194 comprising an idling gear 200 mounted on the carrier and arranged to mesh with both one group of teeth on the segmental gear 194 and a gear 202 rotatably mounted on a stud 204 extending below the jack carrier 20. A driving connection is normally maintained between the gear 202 and a gear 206 also mounted on the shaft 204 and meshing with a segmental gear 208 splined to the jack spindle 48, by means of a clutch comprising a dog 210 on the lower face of the gear 206 which is arranged to be engaged within a notch 212 in the upper radial face of the gear 202. The gears 202 and 206 are normally maintained in engagement by a spring 214 one end of which abuts the lower face of the hub of the gear 202 and the other end of which is supported by a nut 216 on the extreme lower end of the stud 204.

To prevent the work.jack in the jacking position from being turned-and hence impeding the removal of a finished work piece fromthe machine and its replacement by an unfinished work piece, the gears 202, 206 are maintained out of operative engagement at this station by means comprising a lever 218 pivoted on the lower portion of the bearing 50 and which is swung downwardly at the jacking position by engagement at the inner end with a cam surface 220 on an extension of the bracket 64. The. downward 12$ swinging of the lever 218 is imparted to the gear 202 through swivels 222 mounted in the lever 218 and adapted for engagement within a groove 224 in the hub of the gear 202. The connections above-described between the segmental gear 194-128 and the jack spindles 48 in' the illustrated embodiment of the invention are substantially the same as the corresponding elements in the machine shown in the above noted prior patents to which reference may be made for a more detailed 130 description of the construction and operation of these parts. A chain 226 (Fig. 1) connected by a pin 228 (Fig. 3) to the gear 206 and tensioned by a spring 230 is arranged constantly to urge the work jack in a counterclockwise direction (Fig. 2) and the segment of gear teeth on the gear 208 is so positioned that the limiting position of the work jack in this direction is as indicated in Figs. 1 and 2 wherein the breast of the heel faces somewhat outwardly with respect to the direction of its movement between stations. The purpose of the above is to minimize the possibility of interference between the toes. of shoes at the polishing station and the jacking station which might occur during the swinging of the shoe at 145 the polishing station while it is being finished there. Just before the heels to be treated arrive at the wax applying station, the work jacks supporting them are turned into their position with respect to the carrier 20 indicated in Fig. 4 by 150 means of a cam arm 232 (Figs. 4 and 1) attached to the upper end of an arm 233 fixed to the frame 14 adjacent to the wax applying station. The cam arm 232 rotates the work jacks by contact with cam rolls 234 mounted on sleeves 236rotatably mounted in the bearing and splined to the jack spindles 48. As the work jacks thus approach the wax applying station, they are rotated somewhat in a clockwise direction (Fig. 4) about their own axes with respect to the car-r rier 20 to their position illustrated in Fig. 4, and this rotation also causes sufiicient movement of the gear 206 to bring the dog 210 into alinement with the notch 212 in the gear 202 resulting in the gears 206 and 202 being locked to each other.

The work jacks are rotated with respect to the carrier 20 as above stated by means of the above-described connections between them and the worm 188 at one time to cause a transfer of the point of operation of the operating tools about the curved rear portion of the heels and at another time to return the heels to their original positions after the completion of each of the finishing operations and during the transfer of the work jacks between successive stations. To the above end, the effect of the rotation of the worm 188 in meshing engagement with the gear 190 is qualified by a cam 238 effectually integral with the quill shaft 182 and having a track 240 within which is engaged a cam roll mounted on a stud 242 fixed to the end of a bracket 244 attached to the upper portion of the right-hand side of the frame 14 as seen in Fig. 1. The cam track 240 in the illustrated machine is so designed in connection with the worm 188 that during one complete revolution of the worm 188, which corresponds to a cycle in the operation of the finishing machine, the gear 194 is rotated with respect to the carrier during the movement of the latter to carry the jacks between successive stations so as to return the heels to their positions indicated in Fig. 2; to move with the carrier during its two movements when the side faces of the heels are presented to the finishing tools,

and, between the last-mentioned periods, to be moved with respect to the carrier to effect the turning of the heels so as to present the rear portions thereof to the finishing tools for treatment.

As stated above, all of the finishing tools are brought simultaneously into engagement with the respective heels at the beginning of the operation of the jack carrier which results in the presentation of the surfaces to be treated to the tools and are retracted from the heels at the 1 end of the finishing operation in order to provide ample clearance between the work and the finishing tools during the transfer of the several work pieces between successive stations. The mechanism for e ecting, this operation of the operating tools, as 'llustrated the present machine, will now b explained.

The tool carriers 36, 38, 40 and 42 all tend to swing inwardly toward the center of the ma chine under the influence of springs 246 (Fig. 4) connecting eyes 248 on the top of the frame 14 and arms 250 extending from the tool carriers at one side of the mid portion thereof. The tools 28, 30, 32 and 34, which are supported respectively by the above-named carriers, are therefore yieldingly urged against the work when allowed to do so by the mechanism, presently to be described, which controls the swinging of the tool aces fixed in bosses 254 extending from the mid portions of the tool carriers toward the center of the machine, and at their other ends to cranks 256, 258, 260 and 262. The cranks are rotatably mounted on studs fixed in the top portion of the frame 14 and are positioned, respectively, in the vicinity of the wax applying, padding, heel bead-' ing and burnishing, and polishing stations. A lost-motion connection between the above-mentioned cranks and the links 252 is afforded by the provision of elongated slots in the ends of the links 252 within which are engaged pins 264 on each of the cranks. The cranks 260, 262 are pivoted at the opposite ends of a connecting rod 266; and the cranks 260, 256 are each connected to the crank 258' by means of connecting rods 268 and 270, respectively. It thus appears that a movement of the crank 258 in a clockwise direction will cause all of the tool carriers to move simultaneously away from the work jacks; and a movement of the crank 258 in a counterclockwisedirection will allow the carriers to be swung inwardly toward the center of the machine under the influence of the springs 246. The crank 258 is operated by a bell crank 272 the upper arm of which is arranged to engage a roll 274 rotatably mounted on the end of an arm of the crank 258. The bell crank 272 is fulcrumed on a stud 276 extending inwardly from the right side of the frame l4 (Fig. 4) and also carries a rotatable cam roll 278 (Fig. 3) which is arranged to engage a cam 280 fixed to the web of a gear 282 the diameter of which is the same as that of the gear 186 and which is fixed to the shaft 184. The cam 280 is thus operated in synchronism with the rotation of the quill shaft 182 and is so shaped that, through the connections extending between it and the carriers, the tools are allowed to be urged into contact with the work at the end of the movement which efiects a transfer of the 3 several pieces of work between successive stations, and to cause the removal of the tools from engagement with the work pieces at the end of each transfer of the points of operation of the tools about the work pieces. so designed that the cranks 256, 258, 260 and 262 are rotated somewhat further in a counterclockwise direction (Fig. 4) than is necessasry merely to allow the respective tools to engage the side faces of the heels to be treated, and during the operation of the tools on the heels the pins 264 occupy positions near the middle of. the elongated slots' in the endsof the rods 252, thereby insuring that the carriers will be free to swing inwardly by whatever small amounts may be required tomaintain the tools in contact with the heels throughout the entire finishing operation. The mechanism for bringing the tools into engagement with the work to be treated and also that for causing the work to be presented to the tools having been described, the construction and operation ofthe tools themselves will next be explained. The tools will be considered in' the same order in which the work pieces are presented thereto in the normal operation of the machine. The wax applying tool 28 (Fig. 1) in The cam 280 is on the hub 284 by means of an annular plate 294 secured to the hub by means of screws 296. An annular recess cut in the upper face of the hub 284 forms a reservoir 298 adapted to receive a supply of wax or other finishing medium which is conducted to the absorbent ring 29 through orifices 300 leading from the reservoir to the ring 29. A wax or finishing medium tank 302 is disposed above the applying tool on a retainer 304 for an electrical heating unit 306. The retainer 304 being secured by-means of screws 308' to a bracket 310 wlich is fastened to the upper extremity of the tool carrier 36 by means of a screw 312. A duct 314 in a boss 316 extending downwardly from the bottom of the tank 302 is arranged to deliver finishing medium from the tank into a channel 318 in the upper face of the bracket 310, and from the -channel 318 the finishing medium is led to the reservoir 298 through an outlet 320. A drain plug 322 is screwed into a hole at the base of the wax tank 302 and an adjusting screw 324 entering the duct 314 serves as a needle valve for regulating the flow of finishing medium from the tank 302. In view of the proximity of the heating unit 306 to the tank 302, the bracket 310 and the hub 284 of the applying tool, it is apparent that these elements may be effectively heated and kept at a relatively constant temperature, thereby to insure-free flowing of the finishing medium if this requires the use of heat, as in the case when waxes are used as the finishing medium.

As above described, work pieces are intermittently presented to the Wax applying tool and it is therefore desirable to supply finishing medium to the applying tool intermittently and in amounts equal to the amount transferred to each work piece. To this end, the illustrated machine comprises a valve 326 arranged to control the flow of medium through the duct 314,.which'valve is operated by the swinging movement of the applying tool into and out of engagement with the work. The valve 326, which includes a channel in alinement with the duct 314 when the applying tool is in contact with the work, is operated by a lever 328 fixed at one end of the valve 326. The lever 328 is pivotally connected at 330 to an adjustable connecting rod 332 which is pivoted at its lower end to one arm 334 of a bell crank lever rotatably mounted on a screw 336 fixed on the carrier 36. The other arm 338 of the bell crank lever is pivotally connected by a pin 340 with a link 342 adjustably pivoted on, a stud 344 which may be clamped in any desired position along a slot 346 in a bracket 348 secured to the top of the frame 14. As indicated in Fig. 5, when theapplying tool is in rolling contact with the work, the connections above described are so adjusted that the valve 326 allows the finishing medium to flow into the channel 318 from the duct 314, but, as soon as the carrier 36 is swung outwardly to move the applying 'tool 28 away from the work, such movement of the carrier causes a clockwise rotation of the bell crank 334, 338 and similar rotation of the lever 382 which results in the valve' perature as the rest of it, the illustrated machine comprises -a.guard 350 arranged to cover the portion of the periphery of the tool, where it engages the work, whenever the tool is in inoperative position and also arranged to be moved upwardly from between the applying tool and the work before they are brought into contact. The illustrated guard 350 is pivotally supported on a pair of links 352 and 354 which are also pivoted at one side of the bracket 310. The links 352 and 354, together with the guard 350, constitute in effect a parallel motion linkage insuring that as the guard 350 is raised and lowered its position will always be substantially vertical, as illustrated in Fig. 5. Movement is imparted to the guard 350 by means of a rod 356 connected at its f upper end by a pin 358 to the lower link 352, while the lower end of' the rod adjustably connected to the outer end of the bell crank lever arm 334. It will now be apparent that the movement of the tool carrier 36' toward the center of the machine, which results in bringing the absorbent ring 29 into contact with a work piece, causes simultaneously the lifting of the guard 350 and the opening of the valve 326; and similarly, when the carrier 36 is moved to carry the ring 29 away from the work the guard 350 is dropped to heat the portion of the ring 29 which would otherwise be exposed and the 'valve is closed to prevent the unenecessary flow of medium to the. reservoir 298 in the applying tool hub 284. It is to be noted, in addition, that the guard 350 in its elevated position is in proximity to the retainer 304 as well as the end of the bracket 310 from both of which the guard 350' receives sufiicient heat to enable it to act as a heating member for the applying tool 28.

After having been treated by the application of finishing medium to its surface, the work is transferred, as above described, to'the padding station (Fig. '1) where the finishing medium previously applied to the surface of the work is evenly distributed over it and burnished to-some extent. The padding tool 30 is of conventional form and comprises a bristle brush having a fabric cover and is mounted on the upper end of a tool' shaft 360 rotatably mounted in a bearing 362 which is fixedto the upper end of the tool carrier 38 by means ofbolts 364. The tool carrier 38is pivoted near the base of the machine, as described above, and carries an electric motor (not shown) having a gear'connection with the lower end of the shaft 360. While the motor and driving connections between the moor and tool shaft 360 are not illustrated in Fig. 7, it is to be understood that these elements at this'station are identical with the corresponding elements at the rand burnishing and beading-station, which will be described in detail in connection with Fig. 8. The padding tool, as well as the rand burnishing tool and the bufling or polishing tool to be described" later, are continuously driven by motors mounted on the respective tool carriers 38, 40 and 42. In order that the corner of the padding tool adjacent lo the attaching face of a heel being treated shall not engage the adjacent portion of the shoe upper, a brush guide 366 is arranged to prevent lateral movement'of the operating face of the padding tool below the position corresponding to the rand crease of the shoe, as shown in inverted position in Fig. 7. The guide 366 is inclined at practically the same angle as that of the adjacent side of the padding tool 30 and is suppor;ed on a spindle 368 mounted for vertical adjustment in the end of an arm 370. The arm itself is adjustable transversely on an extension 372 of the bearing 362 and may be clamped'in adjusted position on the bearing 362 by means of screws 3'74.

The work pieces after having been padded are transferred to the beading and rand burnishing tool which will now be described. This tool comprises a rand burnishing disk 3'76 adapted for engagement with the usually beveled, exposed face of the heel facing the upper at the rand crease. This disk is replaceably fastened by screws 378 on a hub 380 which is splined as at 381 on the tool shaft 382. The burnishing disk 376 and the hub 380 occupy completely the axial space between the ends of a holder 384 in the form of a yoke which serves as an upper bearing for the tool shaft 382, the shaft being journaled in the ends of the holder 384. The shaft 382 at its lower end is journaled in a bearing bracket 386 ro'atably mounted, for a purpose which will be apparent as the description proceeds, on a stud 388 which is fixed in the tool carrier 40 and rotatably supports a pinion 390 which meshes with a gear 392 fixed on the lower end of the shaft 382. The gear 392, together wi h a collar 394 also fixed to the shaft, prevents any axial movement of the shaft 382 with respect to the bearing bracket 386. An electric motor 396 having on the end of its armature shaft a gear 398 meshing with the pinion 390 is employed to drive the-tool shaft 382 and is supported on a bracket 400 which is effectually integral with the lower portion of the tool carrier 40. The holder 384 is supported so as to hold the rand burnishing disk 376 in proper relation to the rand surface to be burnished as indicated in Fig. 8 by means of a link 402 having two side arms connected by a cross-piece 404. The link 402 is pivotally connected to the holder 384 on a pin 403and is also rotatably mounted on a slop member 408 by means of a pin 410 carried by the stop member, the latter being fixed to the upper end of the tool carrier 40 by means of screws 412. An adjusting screw 414 threaded into an arm at the lower side of the stop member 408 is arranged to engage the lower side of the cross-member 404 and hence to limit the downward'movement of the burnishing disk 376, it being understood that the holder 384 and hub 380 may slide up and down on the shaft 382. The link 402 is normally oblique with respect to the tool shaft 382 so that as the burnishing disk-is urged against the face "of the rand to be burnished the link 402 will rotate a slight amount and a portion of the lateral thrust of the tool which is derived from ihe spring 246, connected with the tool carrier 40, comprises a component of force in the direction of the axis of the tool which eifects a firm contac of the burnishing disk 3'76 against thesurface of the heel to be burnished. The upward movement of the burnishing disk 376 with respect to the tool shaft 382 is limited by a stop screw 416- which is threaded into the upper por' ion of the stop member 408 and is arranged to engage the upper side of the cross-member 404 of the link 402. Simultaneously with the burnishing of the rand of the heel being treated its peripheral face is also beaded. This operation is effected in the illustrated machine by a heading wheek 418 aeeaeos mounted on a spindle 420 journaled in a sleeve 422, which sleeve is threaded in a slide 424. By turning the sleeve 422 the height of the bead wheel with respect to the rand burnishing disk may be varied, and the sleeve 422 may be clamped in adjusted position in the slide by means -of a nut 426. The slide 424 comprises a pair of guide rods 428 and 430 arranged to move transversely of the tool shaft 382 in complementary holes in a bracket 432 adjustably mounted on the upper end of the holder 384. A spring 434 received within a recess in the guide rod 430 and abutting a screw plug 436 in the bracket 432 urges the slide 424 to the left, as seen in Fig. 9, toward the adjacent periphery of the burnishing disk 3'76; and this movement of the slide is adjustably limited by means of nuts 438 threaded on the end of the guide rod 428. A lip 440 (Fig. 10) on the bracket 432 engages a flattened side of the head of the slide 424 in order to assist the guide rods 428 and 430 in holding the slide 424 in position. The bracket 432 is mounted for adjustment about an axis tangent to the edge of the beading wheel 418 remote from the bracket, as illustrated in Fig. 9, and to this end comprises an arcuate guideway 442 adapted to be held in engagement with a similar arcuate guide 444 on the holder 384. The bracket 432 may be held in adjusted position on the holder 384 by means of a clamp screw.446 extending through the arcuate guideway 442. When the heading '.o ol 413 is presented to a heel to be finished, it is displaced somewhat toward the bracket 432 against the resistance of the spring 434 which has been selected so as to have ample strength to hold ihe bead wheel against the work with sufficient force to cause the bead wheel to indent the work well. It isnow apparent that the burnishing disk 3'76, which serves as a guide for con rolling the heightwise position of the bead wheel 418, will not prevent the proper operation of the beading wheel if it should pass a relatively hollow area while the burnishing disk 376 passes a normally formed area.

The work pieces having been treated by the burnishing and beading tools, they will next be I its upper end in a bearing 450 adjustably fastened by means 01 screws 452 to the upper end of the tool carrier 42. The lower end of the tool shaft 448 is supported and driven by mechanism identical to that illustrated in Fig. 8 for supporting the 13 lower end of the tool shaft 382 and for driving it.

Shortly after the work jacks pass from the polishing station, the eccentric dogs 52 are carried into engagement with the face of a cam 454 seecured to the upper end of a bracket 456 attached to the upper left-hand side of the frame 14 (Figs. 1 and 4). The eccentric dogs are thus operated to release the jack spindles 48, allowing them to fall under their own weight and that of the work to the position illustrated at the jacking station in Fig. 1. To obviae the possibility of shoes falling from the work supports 26 when the jack spindles 48 are dropped, each work support 26 5 carries a rod 458 at its lower end, the rod being bent at its outer end so as to extend transversely with respect to the longitudinal axis of the shoe and to support it by engagement with-the toe portion of the upper when the toe drops following the dropping of the jack spindle 48 and the work support 26.

It is now apparent that, it the machine were to he accidentally treadled to operate the jack litting mechanism just as a work jack is brought into jacking position, there would be interference between the lower end of the jacking spindle 48 and the plate 68. The result ofsuch interference obviously would be to break some part of the machine unless one or the other or the interfering elements is arranged to yield. In the illustrated machine, the plate 68, it lifted through accidental treadling into the path of the jack spindle 48, is'merely rotated in accordance with:

From the above it will be seen that the machine is adapted towperform wax applying, padding, beading and burnishing, and polishing operations in succession on individual heels, and that in the normal operation of the machine each of these operations is performed simultaneously with all the others but on different heels; and it is to be understood that it is within the scope of the invention for heels tobe treated in the illustrated machine as above described either unattached or attached to shoes.

To summarize the operation of the machine only the jacking operation and one complete cycle will be explained in detail, it being understood that each work piece will pass through four of such cycles between the times when it is operated on at the wax applying station and removed from the machine.

In operating the machine, the operator will place heels, either unattached or attached to shoes, on the work support 26 as they are brought successively to the jacking position, the pins 58 in the supports 2e being inserted in corresponding holes in the heels for the purpose of alining the heels with the work supports. A heel having been thus placed on the work support, the operator will then depress the treadle It to cause the tread face of the heel to be brought into engagement with the abutment 24 against which it is held in view of the action of the eccentric dog 52 which locks the jack spindle 48 against any axial movement. The height to which the heels are thus elevated may be adjustably determined by varying the length or the connecting rod '26 between the crank shaft '74 and the jack lifter so. The proper alinement or the heels with the various tools may be efiected not only by the adjust ment of the above-mentioned link 76 but also by the heightwise positioning of the tools on their shafts. Assuming that the motor 96 is running, no operation will take place upon the depression of the treadle except that of jacking the shoe, but as soon as the treadle is released the lever 15% will be pulled away from the lug 15S, allowing the clutch element 142 to be clutched to the other clutch element constituted by the gear 8% and sprocket 92, thus starting the rotation through two full revolutions or" the gear 140 which produces, through the mechanism described above, all of the movements comprising one cycle of the machines operation. A heel having been lacked, the first phase of one cycle of the machine is a rotation of the carrier 2% which results in a transfer of of the work jacks to the next operating station, and during this movement 01' the carrier all of the work jacks except that last at the jacking station are rotated about their own axes through substantially half a revoluion. Thislatter rotation of the work jacks is effected by relative rotation between the gear 194 and the jack carrier 20. The jack carrier is thus rotating in a counterclockwise direction (looking at the machine from above) until the corners of all of the heels are opposite the operating faces of the tools. moved toward and into engagement with all of the heels as a result of the operation of the bell crank 272 and connections between it and the tool carriers. The next phase in the machines operation consists of a clockwise rotation of the carrier in order to present one of the side faces of the heels to the tools, during which movement 01' the carrier the gear 194 has no movement relatively to the carrier, as a result oi. which the work jacks are held stationary with respect to the jack carrier. .The next phase of the machine's operation consists ofa rotation of the work jacks in the jack carrier, the latter being held stationam. This movement of the work jacks is efiected by a rotation of the gear 194 which causes a rotation of the heels to present the curved rear portions of the heels to the operating tools. The next and last phase of the machines operation consists of another clockwise rotation of the carrier which results in the presentation of the other side faces of the heels to the operating tools, and again during this movement there is no relative movement between the carrier and the gear 104, the work jacks thus being maintained stationary with respect to the jack carrier.

It is to be noted that the heels, in passing from the jacking station to the wax applying station, are rotated about the axes of the work jacks only on account oi their engagement with the cam 23% since their position when jacked is substantially the same position with respect to the carrier as that which they are'to occupy when first brought into engagement with the wax applying tool; hut,

as above described, the jacks are turned slightly by the action of the cam 232 as they approach the war: applying station, causing the clutch elements oi? gears 210, 212 to be engaged. Subsequently, the positions of the work jacks with respect to the carrier are controlled by the gear 194 and its geared connections with the jack spindles throughout the remainder of the operation or the machine until the jacks again approach the jacking station.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. A heel-finishing machine having, in com ination, shoe-supporting means, a heel-finishing tool mounted for free rotation, and means for producing a relative movement between said tool and said shoe-supporting means to cause the tool ti roll around the periphery of the heel of the s cc.

2. A heehfinlshing machine having, in combination, shoe-supporting means, a heel-finishing tool mounted for free rotation, said tool being provided with a wax-coated absorbent peripheral portion, and means for producing a relative move-= thereto.

3. A heehfinishing machhie having, in combination, shoe-supporting a heehfinishing At this time the tools are simultaneously tool mounted for free rotation, means for producing a relative movement between said tool and said shoe-supporting means to cause the tool to roll around the periphery of the heel of the shoe, and means automatically effective to supply wax to said tool during said relative movement.

a. In a finishing machine, a finishing tool mounted for idle rotary movement, means for supporting a work piece in proximity to the tool, means for bringing the tool and the work into contact and for separating. them at the completion of the finishing operation, and means for causing rolling movement of the tool along the work in order to apply a finishing medium to the work.

5. In a finishing machine, a finishing tool mounted to rotate about a vertical axis, said tool having a reservoir in the upper face thereof adapted to receive a finishing medium, a tank for finishing medium disposed above said tool, means for allowing an intermittent flow of medium from the tank to the tool, and means disposed between said tool and said tank for heating the medium in the tank and in the tool.

6. A heel-finishing machine having, in combination, a heel-finishing tool mounted for rotation about an upright axis and containing an open reservoir adjacent to the top of the tool,

' means for conducting wax from said reservoir to the work engaging portion of the heel-finishing tool, a wax pot above said tool, and means interposed between said wax pot and said tool for supplying heat to the wax in said wax pot and to the wax in said tool reservoir.

7. In a heel-finishing machine, a rotatably mounted finishing tool, a wax pot positioned above said tool, means for supportingsaid wax pot provided with a passageway to conduct wax from said pot to said tool, and means for opening and closing said passageway whereby the flow of wax between the wax pot and the tool can be varied.

8. In a heel-finishing machine, a rotatably mounted finishing tool provided with a peripheral portion of absorbent fibrous material, and means for supplying liquid wax to said tool at a point-spaced from the active face of the said peripheral portion thereof whereby the wax will soak through the material toward the periphcry thereof.

9. In a heel-finishing machine, a heel-finishing tool mounted for rotation about an upright axis and provided with an absorbent peripheral portion, said tool having an open receptacle and passageways from said receptacle to said absorbent portion, a wax pot for supplying wax to said receptacle, and means responsive to the presentation of work to said tool for controlling the flow of wax from the wax pot to the receptacle.

10. In a heel-finishing machine, a rotatably mounted flnishin tool, means for supplying heat to said tool constructed and arranged partially to surround the tool, and a movable heat-retaining guard adapted to be positioned over the unprotected portion of the tool. l

11. In a heel-finishing machine, a rotatably mounted finishing tool, means for supplying heat to said tool constructed and arranged partially to surround the tool, a movable heat-retaining. guard adapted to be positioned over the unprotected portion of the tool, and means for automatlcally removing said guard on the presentation of work to the tool.

12. In a finishing tool, means for relatively moving the work and the tool to transfer the point of operation of'the tool about the surface connections between the' guard and the lastaeaaeoe of the work to be treated, means for causing relative approach and separation of the tool and the work before and after the heel treating operations, respectively, a guard normally covering the work engaging face of the heel finishing tool, and connections operated by the relative movement of the work and the tool for moving said guard away from the operating face of the tool as it is brought into contact with the work.

13. A machine of the class described having, in combination, a jack to support the work to be operated on, a finishing tool, means for relatively moving the work and the tool to transfer the point of operation of the tool about the surface of the work, means for causing relative move- .ment of approach and separation of the tool and the work before and after the finishing operation, respectively, a guard normally covering the work engaging face of the finishing tool, and connections between the guard and the last-named means operated by the relative movement of the work and the tool for moving said guard away 'from the operating face of the tool as the work the tool to uncover the work engaging face there- 11) of as the tool and work are brought into engagement and for moving the guard toward the tool to cover the work-engaging face of the tool as the tool and the work are separated.

15. A machine of the class described having, in combination, a jack to support the work to be operated on, a finishing tool, means for relatively moving the work and the tool to transfer the point of operation of the tool about the surface of the work, means for causing relative movement of approach and separation 'of the tool and the work before and after the finishing operation, respectively, a guard normally covering the work engaging face of the finishing tool, and

named means whereby, during relative movement of the work and the tool, the guard is moved relatively to the tool to uncover the operating face thereof before it contacts with the work and to cover the operating face of the tool as the'tool and the-work are separated.

,16. A machine of the class described having, in combination, a work support, a finishing tool for applying a finishing medium, means for relatively moving the support and thetoolto transfer the point of operation of the tool about the surface of the work to be treated, means for causing relative movement of approach and separation (of the tool and th'e work before and after the finishing operation, respectively, a finishing me- 1 dium reservoir, a valve between the reservoir and the tool, and means responsive to relative movement between the finishing tool and the work for opening and closing the valve.

17. A machine of the class described having, I, in combination, a support for the work to be operated on, a finishing tool, means for relatively moving the support and the tool to transfer the point of operation of the tool about the surface of the work, means for causing relativemove- 2 ment of approach and separation of the tool and the work before and after the finishing operation, respectively, a finishing medium tank disposed above said finishing tool, and means for causing an intermittent flow of medium from the tank to the tool during relative movement of the tool and the work.

18. In a heel-finishing machine, a finishing tool, a work support, means for relatively moving the support and the tool to transfer the point of operation of the tool about the peripheral surface of the heel of a shoe on the support, means for relatively moving the tool and the support to cause the heel and the tool to be brought into engagement before the finishing operation and to be separated thereafter, a finishing-medium reservoir, means for conducting finishing medium from the reservoir to the tool, a valve for controlling the fiow of finishing medium through the last-mentioned means, and mechanism for opening and closing the valve as the tool and work are brought together'and separated respectively.

19. In a heel-finishing machine, a finishing tool, a work support, means for relatively moving the support and the tool to transfer the point of operation of the tool about the peripheral surface-of the heel of a shoe on the support, means for relatively moving the tool and the support to cause the heel and the tool to be brought into engagement before the finishing operation and to be separated thereafter, a finishing-medium reservoir, a conductor for supplying finishing medium to the tool from the reservoir, means for regulating the flow of finishing medium through the conductor, a valve for interrupting the how of finishing medium through the conductor, and means operated by the relative movement of the tool and the work toward each other to open the valve constructed and arranged to hold the valve closed when the tool and worl: are separated.

29. A machine of the class described having, in combination, a work support, a finishing tool. means for relatively moving the support and the tool to transfer the point of operation of the tool about the surface of the work to be treated, means for causing relative movement of approach andseparation of the tool and the wori: before and after the finishing operation, respectively, a guard normally covering the work-engaging face of the finishing tool, means for moving the guard relatively to the tool to uncover the work engaging face of the tool as it is moved into engagement with the work and to cover the work engaging face of the tool as the tool is moved away from the work, and means for supplying finishing medium to the finishing tool comprising a valve which is opened and closed concurrently' with the movements of the guard.

21. A machine of the class described having, in combination, a work support, a finishingtool, means for relatively moving the support and the tool to transfer the point of operation of the tool about the surface of the work to be' treated, means for causing relative movement of approach and separation of the tool aid the work before and after the finishing opera .ion', respectively, a guard normally covering the work engaging face of the finishing tool, a finish ng medium tank disposed above said tool, a valve for regulatirng the flow of finishing medium from the.

tank to the tool, and means responsive to role tive movement of the finishing tool and the work comprising connections between'the guard and the valve whereby said guard is moved relatively Bil shaft, means for moving said tool shaft to bring the tool into engagement with the work, said tool comprising a rand-crease-entering member constructed and arranged to operate upon the top surface of the rand around the heel of a shoe, 9-.) and means for exerting an oblique pressure upon said tool constructed and arranged to hold the crease-entering member in firm engagement with the top of the rand. I

23. A heel-finishing machine having, in combination, shoe-supporting means, a tool-carrying shaft, 8. heel-finishing tool splined upon said shaft, means for moving said tool shaftto bring the tool into engagement with the work, said tool comprising a randcr,ease-entering member constructed and arranged to operate upon the top surface of the rand around the heel of a shoe and another member for'operating upon the periphery of the heel of the shoe, means for exerting an oblique pressure upon said tool constructed and arranged to hold the crease-entering member in firm engagement with the top of the rand thereby to determine the position of the member for operating upon the periphery, and adjustable means for limiting the movement of up the tool along the shaft.

24. A heel-shing machine having, in com bination, shoe-supporting means arranged to support a shoe, having the top surface of the rand inclined toward the tread of the heel, for 115 rotation about a predetermined axis, a tool-carrying t rotatable abouta substantially parallel aids, a crease-entering tool mounted for movement along said shaft and providedwith a beveled surface adapted to engage an inclined surface on my the top of the rand of the shoe, and means for exerting an oblique pressure to bring said tool into engagement with the shoe and to cause a slipping action between the beveled surface of the tool and the inclined surface of the rand as 135 the tool is brought into engagement.

25. A heel-finishing machine having, in com-= bination, a toolholder, a rand-crease-entering tool rotatable in said holder, and atool for openating upon the periphery ofthe heel, said tools 139 being mounted for radial movement relatively to each otherin said holder.

26. A heel-finishing machine having, in combination, a tool holder, a rand-crease-entering tool rotatable in said holder, a tool for operating upon the periphery of the heel, means for resiliently supporting said tool in said holder, and means for limiting the movement of said periphcry-engaging tool radially with respect to the crease-engaging tool.

27. A heel-finishing machine having, in combination. a holder, a crease-entering tool on said holder, a bead wheel, and means for supporting said head wheel for rotation about an axis in clined with respect to the axis of said crease- 145 entering tool.

28. A heel-finishing machine having, in combination, a holder, a crease-entering tool on said holder, a beadwheel, means forsupporting said bead wheel for rotation about an axis having a 5g predetermined inclination with respect to the axis of said crease tool, and means for adjusting the inclination of said axis of the bead wheel with respect to the axis of said crease-entering tool.

29. A heel-finishing machine having, in combination, a holder, 9. finishing tool on said holder, a bead wheel mounted for rotation about a predetermined axis, a slide in said holder for supporting said bead wheel, and resilient means acting on said slide to urge said bead wheel toward the periphery of the finishing tool.

36. A heel-finishing machine having, in combination, a holder, a finishing tool mounted for rotation in said holder, a bead wheel, a bracket supporting said bead wheel, means for securing said bracket on said holder, and interengaging surfaces on the holder and, bracket constructed and arranged to limit adjustment of the bracket to movement around a predetermined axis with respect to said holder.

31. In a heel-finishing machine, shoe-supporting means, a tool-carrying arm movable toward and away from said shoe-supporting means, a tool-carrying shaft on said arm, a tool on said shaft, a bearing for one end of said shaft pivotally connected to'said arm near one end thereof, a slidable bearing for the other end of the shaft connected by a link to said arm near the other end thereof, a tool splined to said shaft slidable with said latter bearing, and means for limiting the swing of said link with respect to said arm and hence the sliding movement of the tool with respect to the shaft.

32. In a heel-finishing machine, shoe-supporting means, a tool-carryingarm movable toward and away from said shoe-supporting means, a tool-carrying, shaft on said arm, a tool on said shaft, a bearing for one end of said shaft piv-- otally connected to said arm near one end thereof, a slidable bearing forthe other end of the shaft connected by a link to said arm near the other end thereof, a tool splined to said shaft slidable with said latter bearing, means for limiting the movement of said link with respect to said arm, an electric motor supported on said arm, and a driving connection between said motor and said shaft operative independently of variation in the angular relation of the shaft and the arm.

33. In a machine of the character described, a rotatable turret carrying a plurality of shoe supporting devices, a base beneath said turret provided with mechanism for rotating the turret intermittently, substantially upright tool carrying arms pivotally mounted on said base adjacent to the bottom thereof and arranged at intervals around the base, shafts journaled in said arms, shoe treating tools mounted on said shafts near their upper ends, means for driving said tool shafts, and means for causing in-and-out movement of said arms to bring said tools into engagement with shoes supported on the turret.

34. In a machine of the character described, a rotatable turret carrying a plurality of shoe supporting devices, a base beneath said turret provided with mechanism for rotating the turret intermittently, substantially upright tool carrying arms pivotally mounted on said base adjacent to the bottom thereof and arranged at intervals around the base, shafts Jounialed in said arms, shoe treating tools mounted on said shafts near their upper ends, means for driving said tool necaeos 35. In a machine of the character described, a rotatable turret carrying a plurality of shoe-supporting devices, a base beneath said turret provided with mechanism for rotating the turret intermittentl substantially upright tool carrying arms pivotally mounted on said base adjacent to the bottom thereof and arranged at intervals around the base, shafts journaled in said arms, shoe treating tools mounted on said shafts near their upper ends, means for causing in-and-out movement of said arms to bring said tools into engagement with shoes supported on the turret, and driving motors connected to said tool shafts mounted on said arms for in-and-out movement with the arms whereby the driving connections between the motors and the shafts are unaffected by movements of the arms.

36. In a heel-finishing machine, work-jacking mechanism comprising an abutment and a jack spindle movable toward the abutment to clamp a work piece therebetween, means for moving said jacking mechanism successively out of and into jacking position, and a jack lifter comprising a jack spindle engaging face arranged to yield in the direction of movement of the jack spindle as the latter is carried into jacking position.

3'7. A shoe-finishing machine having a carrier, a plurality of jacks on said carrier constructed and arranged to clamp a shoe, each of said jacks comprising a slidably mounted jack spindle, means for moving said carrier operating to bring said jacks successively into jacking position, and operator-controlled means for sliding said spindle to clamp shoes on said jacks, said means having a laterally displaceable portion arranged normaljacking operation.

38. A shoe-finishing machine having a carrier, a plurality of jacks on'said carrier constructed and arranged to clamp a shoe, each of said jacks comprising a slidably mounted jack spindle, means for moving said carrier to bring the jacks successively into jacking position, and operator-controlled means for moving the jack spindles coml to contact with the jack spindle, to eflect the I prising an operating member movable in a path erating to bring said jacks successively into jacking position, and operator-controlled means cooperating with said jack spindles to clamp shoes on said jacks, said means comprising a spindleengaging portion mounted for lateral displacement in a direction parallel to the plane of movement of the can'ier.

40. A shoe-finishing machine having a carrier movable horizontally, a plurality of jacks on said carrier constructed and arranged to clamp a shoe,

each comprising a vertically movable spindle,

means for moving said carrier operating to bring said jacks successively into jacking position, and an operator-controlled jack lifter movable touse i ward and away from a jack spindle and provided with a spindle-contacting portion which is laterally displaceable on engagement with a jack spindle moving into jacking position.

41. A shoe-finishing machine having a carrier movable, horizontally, a plurality of jacks on said carrier constructed and arranged to'cla'mp a shoe,

messes each comprising a vertically movable spindle, means for moving said carrier operating to bring said jack successively into jacking position, an operator-controlled jack lifter movable toward and away from a jack spindle and provided with a spindle-contacting portion which is laterally displaceable on engagement with a jack spindle moving into jacking position, and means acting normally to hold said displaceable portion in alinement with a jack spindle.

42. A shoe-finishing machine having a carrier movable horizontally, a plurality of jacks on said carrier constructed and arranged to clamp a shoe, each comprising a vertically movable spindle, means for moving said carrier operating to bring said jacks successively into jacking position, an operator-controlled jack lifter movable in a path parallel to the path of movement of a jack spindle, a lifter plate, and links supporting said lifter plate on said jack lifter constructed and arranged to permit lateral displacement of said litter plate.

43. A shoe-finishing machine having a carrier movable horizontally, a plurality of jacks on said carrier constructed and arranged to clamp a shoe, each comprising a vertically movable spindle, means for moving said carrier operating to bring said jacks successively into jacking position, an operator-controlled jack lifter movable in a. path parallel to the path of movement of a jack spindle, a lifter plate, links supporting said lifter plate on said jack lifter constructed and arranged to permit lateral displacement of the plate, and means for returning said lifter plate to operative position after displacement thereof.

44. A shoe-finishing machine having a carrier movable horizontally, a plurality of jacks on said carrier constructed and arranged to clamp a shoe, each comprising a vertically movable spindle,

means for moving said carrier operating to bring said jacks successively into jacking position, and power-operated mechanism for lifting a spindle comprising a jack lifter provided with a laterally displaceable spindle-engaging portion.

45. In a heel-finishing machine, shoe-supporting means for holding a shoe in inverted position, a brush for padding the periphery of a heel on the shoe, a driven upright shaft on which said brush is mounted, and a bristle-controlling member subtending the bristles adjacent to the shoecontacting portion of the brush whereby downward deflection of the bristles to contact with the upper of the shoe is prevented.

46. In a heel-finishing machine, shoe-supporting means adapted to hold a shoe in inverted position, a padding brush adapted for rotation about an upright axis, means for supporting said brush comprising a tool-carrying shaft, a bearing for said shaft movable toward and away from said shoe support, and a bristle-controlling member adjustably mounted on said bearing and constructed and arranged to subtend said bristles adjacent to the point of contact between said brush and the work whereby downward deflection of the bristles into contact with the upper of the shoe is prevented.

HENRY B. GREENOUGH. 

